Analysis Overview
SHA256
2c571c3a1e8a8d5e005c8f2e58124ecb37aa4e10449898c5a4e44a84088476eb
Threat Level: Known bad
The file 2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker was found to be: Known bad.
Malicious Activity Summary
Detection of CryptoLocker Variants
Detection of Cryptolocker Samples
UPX dump on OEP (original entry point)
UPX dump on OEP (original entry point)
Detection of Cryptolocker Samples
Detection of CryptoLocker Variants
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
UPX packed file
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-10 21:45
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-10 21:45
Reported
2024-06-10 21:47
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 116 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 116 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 116 wrote to memory of 2636 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/116-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/116-9-0x0000000000620000-0x0000000000626000-memory.dmp
memory/116-2-0x0000000000750000-0x0000000000756000-memory.dmp
memory/116-1-0x0000000000620000-0x0000000000626000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | 20076eeb62778de2b539f028c7afa874 |
| SHA1 | e1b5892d1b295ad42a0d6e8a30231ce9546685ad |
| SHA256 | d18e94dbd0c07915be65c192df3528432cdc1d4d35f020e3aee30f83b122d563 |
| SHA512 | fc8df1bf5e7587aa94f933357fe967c946b51463ab3f4dd6c71f2e3edf528865d77e3948deb485421d9a2d379cd1d2fc8d81ada77660a3e59afae6381c2b3713 |
memory/116-16-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2636-25-0x0000000000520000-0x0000000000526000-memory.dmp
memory/2636-19-0x00000000006C0000-0x00000000006C6000-memory.dmp
memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-10 21:45
Reported
2024-06-10 21:47
Platform
win7-20240508-en
Max time kernel
144s
Max time network
148s
Command Line
Signatures
Detection of CryptoLocker Variants
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detection of Cryptolocker Samples
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\misid.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2224 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 2224 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 2224 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
| PID 2224 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe | C:\Users\Admin\AppData\Local\Temp\misid.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_f934fae6bfbb6268566f86cd9b38e5ec_cryptolocker.exe"
C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
| US | 8.8.8.8:53 | bestccc.com | udp |
Files
memory/2224-0-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2224-1-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2224-3-0x0000000000350000-0x0000000000356000-memory.dmp
memory/2224-2-0x0000000000300000-0x0000000000306000-memory.dmp
\Users\Admin\AppData\Local\Temp\misid.exe
| MD5 | 20076eeb62778de2b539f028c7afa874 |
| SHA1 | e1b5892d1b295ad42a0d6e8a30231ce9546685ad |
| SHA256 | d18e94dbd0c07915be65c192df3528432cdc1d4d35f020e3aee30f83b122d563 |
| SHA512 | fc8df1bf5e7587aa94f933357fe967c946b51463ab3f4dd6c71f2e3edf528865d77e3948deb485421d9a2d379cd1d2fc8d81ada77660a3e59afae6381c2b3713 |
memory/2224-15-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2596-17-0x0000000000300000-0x0000000000306000-memory.dmp
memory/2596-25-0x0000000000500000-0x0000000000510000-memory.dmp
memory/2596-24-0x0000000000240000-0x0000000000246000-memory.dmp